[U-Boot-Users] CFG_HZ value

Nelson Castillo nelsoneci at gmail.com
Wed Jun 20 04:49:03 CEST 2007


> How should one define CFG_HZ?  It seems that it's to be set to 1000.
> However my system clock speed is not this.  What are the rules for setting
> this value?  This constant is used in the timing functions of some boards.

Is this a little off-topic?

1000 could be OK. Some people use 250.  Others go as far as using
100. It says how many times the kernel will wake up each second to
perform some tasks. A very exciting feature of recent kernels is that
you will not need that to happen. You might want to check this:

http://lwn.net/Articles/223185/

And google for CONFIG_NO_HZ.

Regards.



-- 
http://arhuaco.org
http://emQbit.com




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